Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Poster 2: Intersectional Session
Q 23.18: Poster
Dienstag, 15. März 2011, 18:00–21:00, P1
Quantum key distribution on Hanover Campus: Theory — •Jörg Duhme1, Torsten Franz1, Reinhard F. Werner1, Vitus Händchen2, Tobias Eberle2, and Roman Schnabel2 — 1Leibniz Universität Hannover, Institut für Theoretische Physik, AG Quanteninformation — 2Albert Einstein Institut, Quantum Interferometry
We report on the implementation of an entanglement-based quantum cryptograph on Hanover campus using squeezed gaussian states (continuous variables). This poster focuses on the theoretical aspects of this project. First available experimental data has been compared with the theoretical simulation of the experimental setup. We discuss the different sources of noise in the setup focusing especially on their impact on the key rate and the EPR-criterion. Furthermore we discuss the possible origins of memory effects in the experiment.